#define _CRT_SECURE_NO_WARNINGS 1
#include "stdio.h"
slen(char *xm)
{
	char* arr = xm;
	while (*xm != 0)
	{
		xm++;
	}
	return xm - arr;
}
main()
{   
	char xm[20]="wangjinhui";
	printf("%d", slen(xm));

}